pragma Style_Checks (All_Checks);
with Atree; use Atree;
with Einfo; use Einfo;
with Fname; use Fname;
with Namet; use Namet;
with Namet; use Namet;
with Output; use Output;
with Sinfo; use Sinfo;
with Sinput; use Sinput;
with Stand; use Stand;
with Stringt; use Stringt;
with Tree_IO; use Tree_IO;
with Uname; use Uname;
package body Lib is
type SEU_Result is (
Yes_Before, Yes_Same, Yes_After, No);
function Check_Same_Extended_Unit (S1, S2 : Source_Ptr) return SEU_Result;
function Cunit (U : Unit_Number_Type) return Node_Id is
begin
return Units.Table (U).Cunit;
end Cunit;
function Cunit_Entity (U : Unit_Number_Type) return Entity_Id is
begin
return Units.Table (U).Cunit_Entity;
end Cunit_Entity;
function Dependency_Num (U : Unit_Number_Type) return Nat is
begin
return Units.Table (U).Dependency_Num;
end Dependency_Num;
function Dependent_Unit (U : Unit_Number_Type) return Boolean is
begin
return Units.Table (U).Dependent_Unit;
end Dependent_Unit;
function Dynamic_Elab (U : Unit_Number_Type) return Boolean is
begin
return Units.Table (U).Dynamic_Elab;
end Dynamic_Elab;
function Error_Location (U : Unit_Number_Type) return Source_Ptr is
begin
return Units.Table (U).Error_Location;
end Error_Location;
function Expected_Unit (U : Unit_Number_Type) return Unit_Name_Type is
begin
return Units.Table (U).Expected_Unit;
end Expected_Unit;
function Fatal_Error (U : Unit_Number_Type) return Boolean is
begin
return Units.Table (U).Fatal_Error;
end Fatal_Error;
function Generate_Code (U : Unit_Number_Type) return Boolean is
begin
return Units.Table (U).Generate_Code;
end Generate_Code;
function Has_RACW (U : Unit_Number_Type) return Boolean is
begin
return Units.Table (U).Has_RACW;
end Has_RACW;
function Ident_String (U : Unit_Number_Type) return Node_Id is
begin
return Units.Table (U).Ident_String;
end Ident_String;
function Loading (U : Unit_Number_Type) return Boolean is
begin
return Units.Table (U).Loading;
end Loading;
function Main_Priority (U : Unit_Number_Type) return Int is
begin
return Units.Table (U).Main_Priority;
end Main_Priority;
function Source_Index (U : Unit_Number_Type) return Source_File_Index is
begin
return Units.Table (U).Source_Index;
end Source_Index;
function Unit_File_Name (U : Unit_Number_Type) return File_Name_Type is
begin
return Units.Table (U).Unit_File_Name;
end Unit_File_Name;
function Unit_Name (U : Unit_Number_Type) return Unit_Name_Type is
begin
return Units.Table (U).Unit_Name;
end Unit_Name;
procedure Set_Cunit (U : Unit_Number_Type; N : Node_Id) is
begin
Units.Table (U).Cunit := N;
end Set_Cunit;
procedure Set_Cunit_Entity (U : Unit_Number_Type; E : Entity_Id) is
begin
Units.Table (U).Cunit_Entity := E;
Set_Is_Compilation_Unit (E);
end Set_Cunit_Entity;
procedure Set_Dynamic_Elab (U : Unit_Number_Type; B : Boolean := True) is
begin
Units.Table (U).Dynamic_Elab := B;
end Set_Dynamic_Elab;
procedure Set_Error_Location (U : Unit_Number_Type; W : Source_Ptr) is
begin
Units.Table (U).Error_Location := W;
end Set_Error_Location;
procedure Set_Fatal_Error (U : Unit_Number_Type; B : Boolean := True) is
begin
Units.Table (U).Fatal_Error := B;
end Set_Fatal_Error;
procedure Set_Generate_Code (U : Unit_Number_Type; B : Boolean := True) is
begin
Units.Table (U).Generate_Code := B;
end Set_Generate_Code;
procedure Set_Has_RACW (U : Unit_Number_Type; B : Boolean := True) is
begin
Units.Table (U).Has_RACW := B;
end Set_Has_RACW;
procedure Set_Ident_String (U : Unit_Number_Type; N : Node_Id) is
begin
Units.Table (U).Ident_String := N;
end Set_Ident_String;
procedure Set_Loading (U : Unit_Number_Type; B : Boolean := True) is
begin
Units.Table (U).Loading := B;
end Set_Loading;
procedure Set_Main_Priority (U : Unit_Number_Type; P : Int) is
begin
Units.Table (U).Main_Priority := P;
end Set_Main_Priority;
procedure Set_Unit_Name (U : Unit_Number_Type; N : Unit_Name_Type) is
begin
Units.Table (U).Unit_Name := N;
end Set_Unit_Name;
function Check_Same_Extended_Unit (S1, S2 : Source_Ptr) return SEU_Result is
Sloc1 : Source_Ptr;
Sloc2 : Source_Ptr;
Sind1 : Source_File_Index;
Sind2 : Source_File_Index;
Inst1 : Source_Ptr;
Inst2 : Source_Ptr;
Unum1 : Unit_Number_Type;
Unum2 : Unit_Number_Type;
Unit1 : Node_Id;
Unit2 : Node_Id;
Depth1 : Nat;
Depth2 : Nat;
begin
if S1 = No_Location or else S2 = No_Location then
return No;
elsif S1 = Standard_Location then
if S2 = Standard_Location then
return Yes_Same;
else
return No;
end if;
elsif S2 = Standard_Location then
return No;
end if;
Sloc1 := S1;
Sloc2 := S2;
Unum1 := Get_Code_Unit (Sloc1);
Unum2 := Get_Code_Unit (Sloc2);
loop
Sind1 := Get_Source_File_Index (Sloc1);
Sind2 := Get_Source_File_Index (Sloc2);
if Sind1 = Sind2 then
if Sloc1 < Sloc2 then
return Yes_Before;
elsif Sloc1 > Sloc2 then
return Yes_After;
else
return Yes_Same;
end if;
end if;
Unit1 := Unit (Cunit (Unum1));
Unit2 := Unit (Cunit (Unum2));
if Nkind (Unit1) = N_Subunit
and then Present (Corresponding_Stub (Unit1))
then
if Nkind (Unit2) = N_Subunit
and then Present (Corresponding_Stub (Unit2))
then
if Length_Of_Name (Unit_Name (Unum1)) <
Length_Of_Name (Unit_Name (Unum2))
then
Sloc2 := Sloc (Corresponding_Stub (Unit2));
Unum2 := Get_Source_Unit (Sloc2);
goto Continue;
else
Sloc1 := Sloc (Corresponding_Stub (Unit1));
Unum1 := Get_Source_Unit (Sloc1);
goto Continue;
end if;
else
Sloc1 := Sloc (Corresponding_Stub (Unit1));
Unum1 := Get_Source_Unit (Sloc1);
goto Continue;
end if;
elsif Nkind (Unit2) = N_Subunit
and then Present (Corresponding_Stub (Unit2))
then
Sloc2 := Sloc (Corresponding_Stub (Unit2));
Unum2 := Get_Source_Unit (Sloc2);
goto Continue;
end if;
Inst1 := Instantiation (Sind1);
Inst2 := Instantiation (Sind2);
if Inst1 /= No_Location then
if Inst2 /= No_Location then
Depth1 := Instantiation_Depth (Sloc1);
Depth2 := Instantiation_Depth (Sloc2);
if Depth1 < Depth2 then
Sloc2 := Inst2;
Unum2 := Get_Source_Unit (Sloc2);
goto Continue;
elsif Depth1 > Depth2 then
Sloc1 := Inst1;
Unum1 := Get_Source_Unit (Sloc1);
goto Continue;
else
Sloc1 := Inst1;
Sloc2 := Inst2;
Unum1 := Get_Source_Unit (Sloc1);
Unum2 := Get_Source_Unit (Sloc2);
goto Continue;
end if;
else
Sloc1 := Inst1;
Unum1 := Get_Source_Unit (Sloc1);
goto Continue;
end if;
elsif Inst2 /= No_Location then
Sloc2 := Inst2;
Unum2 := Get_Source_Unit (Sloc2);
goto Continue;
end if;
if Nkind (Unit1) = N_Subprogram_Body
or else
Nkind (Unit1) = N_Package_Body
then
if Library_Unit (Cunit (Unum1)) = Cunit (Unum2) then
return Yes_After;
end if;
elsif Nkind (Unit2) = N_Subprogram_Body
or else
Nkind (Unit2) = N_Package_Body
then
if Library_Unit (Cunit (Unum2)) = Cunit (Unum1) then
return Yes_Before;
end if;
end if;
return No;
<<Continue>>
null;
end loop;
end Check_Same_Extended_Unit;
function Compilation_Switches_Last return Nat is
begin
return Compilation_Switches.Last;
end Compilation_Switches_Last;
function Earlier_In_Extended_Unit (S1, S2 : Source_Ptr) return Boolean is
begin
return Check_Same_Extended_Unit (S1, S2) = Yes_Before;
end Earlier_In_Extended_Unit;
function Entity_Is_In_Main_Unit (E : Entity_Id) return Boolean is
S : Entity_Id;
begin
S := Scope (E);
while S /= Standard_Standard loop
if S = Main_Unit_Entity then
return True;
elsif Ekind (S) = E_Package and then Is_Child_Unit (S) then
return False;
else
S := Scope (S);
end if;
end loop;
return False;
end Entity_Is_In_Main_Unit;
function Generic_Separately_Compiled (E : Entity_Id) return Boolean is
begin
if Is_Internal_File_Name
(Fname => Unit_File_Name (Get_Source_Unit (E)),
Renamings_Included => True)
then
return False;
else
return True;
end if;
end Generic_Separately_Compiled;
function Get_Code_Unit (S : Source_Ptr) return Unit_Number_Type is
Source_File : Source_File_Index :=
Get_Source_File_Index (Top_Level_Location (S));
begin
for U in Units.First .. Units.Last loop
if Source_Index (U) = Source_File then
return U;
end if;
end loop;
return Main_Unit;
end Get_Code_Unit;
function Get_Code_Unit (N : Node_Or_Entity_Id) return Unit_Number_Type is
begin
return Get_Code_Unit (Sloc (N));
end Get_Code_Unit;
function Get_Compilation_Switch (N : Pos) return String_Ptr is
begin
if N <= Compilation_Switches.Last then
return Compilation_Switches.Table (N);
else
return null;
end if;
end Get_Compilation_Switch;
function Get_Cunit_Entity_Unit_Number
(E : Entity_Id)
return Unit_Number_Type
is
begin
for U in Units.First .. Units.Last loop
if Cunit_Entity (U) = E then
return U;
end if;
end loop;
return Main_Unit;
end Get_Cunit_Entity_Unit_Number;
function Get_Cunit_Unit_Number (N : Node_Id) return Unit_Number_Type is
begin
for U in Units.First .. Units.Last loop
if Cunit (U) = N then
return U;
end if;
end loop;
return Main_Unit;
end Get_Cunit_Unit_Number;
function Get_Source_Unit (S : Source_Ptr) return Unit_Number_Type is
Source_File : Source_File_Index :=
Get_Source_File_Index (Top_Level_Location (S));
begin
Source_File := Get_Source_File_Index (S);
while Template (Source_File) /= No_Source_File loop
Source_File := Template (Source_File);
end loop;
for U in Units.First .. Units.Last loop
if Source_Index (U) = Source_File then
return U;
end if;
end loop;
return Main_Unit;
end Get_Source_Unit;
function Get_Source_Unit (N : Node_Or_Entity_Id) return Unit_Number_Type is
begin
return Get_Source_Unit (Sloc (N));
end Get_Source_Unit;
function In_Extended_Main_Code_Unit
(N : Node_Or_Entity_Id)
return Boolean
is
begin
if Sloc (N) = Standard_Location then
return True;
elsif Sloc (N) = No_Location then
return False;
elsif Nkind (N) = N_Defining_Identifier
and then Is_Itype (N)
then
return In_Extended_Main_Code_Unit (Associated_Node_For_Itype (N));
elsif Get_Code_Unit (Sloc (N)) = Get_Code_Unit (Cunit (Main_Unit)) then
return True;
else return
In_Same_Extended_Unit (Sloc (N), Sloc (Cunit (Main_Unit)));
end if;
end In_Extended_Main_Code_Unit;
function In_Extended_Main_Source_Unit
(N : Node_Or_Entity_Id)
return Boolean
is
begin
if Sloc (N) = Standard_Location then
return True;
elsif Sloc (N) = No_Location then
return False;
elsif Nkind (N) = N_Defining_Identifier
and then Is_Itype (N)
then
return In_Extended_Main_Source_Unit (Associated_Node_For_Itype (N));
else
return
In_Same_Extended_Unit
(Original_Location (Sloc (N)),
Original_Location (Sloc (Cunit (Main_Unit))));
end if;
end In_Extended_Main_Source_Unit;
function In_Same_Code_Unit (N1, N2 : Node_Or_Entity_Id) return Boolean is
S1 : constant Source_Ptr := Sloc (N1);
S2 : constant Source_Ptr := Sloc (N2);
begin
if S1 = No_Location or else S2 = No_Location then
return False;
elsif S1 = Standard_Location then
return S2 = Standard_Location;
elsif S2 = Standard_Location then
return False;
end if;
return Get_Code_Unit (N1) = Get_Code_Unit (N2);
end In_Same_Code_Unit;
function In_Same_Extended_Unit (S1, S2 : Source_Ptr) return Boolean is
begin
return Check_Same_Extended_Unit (S1, S2) /= No;
end In_Same_Extended_Unit;
function In_Same_Source_Unit (N1, N2 : Node_Or_Entity_Id) return Boolean is
S1 : constant Source_Ptr := Sloc (N1);
S2 : constant Source_Ptr := Sloc (N2);
begin
if S1 = No_Location or else S2 = No_Location then
return False;
elsif S1 = Standard_Location then
return S2 = Standard_Location;
elsif S2 = Standard_Location then
return False;
end if;
return Get_Source_Unit (N1) = Get_Source_Unit (N2);
end In_Same_Source_Unit;
function Increment_Serial_Number return Nat is
TSN : Int renames Units.Table (Current_Sem_Unit).Serial_Number;
begin
TSN := TSN + 1;
return TSN;
end Increment_Serial_Number;
procedure Initialize is
begin
Linker_Option_Lines.Init;
Load_Stack.Init;
Units.Init;
Unit_Exception_Table_Present := False;
Compilation_Switches.Init;
end Initialize;
function Is_Loaded (Uname : Unit_Name_Type) return Boolean is
begin
for Unum in Units.First .. Units.Last loop
if Uname = Unit_Name (Unum) then
return True;
end if;
end loop;
return False;
end Is_Loaded;
function Last_Unit return Unit_Number_Type is
begin
return Units.Last;
end Last_Unit;
procedure List (File_Names_Only : Boolean := False) is separate;
procedure Lock is
begin
Linker_Option_Lines.Locked := True;
Load_Stack.Locked := True;
Units.Locked := True;
Linker_Option_Lines.Release;
Load_Stack.Release;
Units.Release;
end Lock;
function Num_Units return Nat is
begin
return Int (Units.Last) - Int (Main_Unit) + 1;
end Num_Units;
procedure Replace_Linker_Option_String
(S : String_Id; Match_String : String)
is
begin
if Match_String'Length > 0 then
for J in 1 .. Linker_Option_Lines.Last loop
String_To_Name_Buffer (Linker_Option_Lines.Table (J).Option);
if Match_String = Name_Buffer (1 .. Match_String'Length) then
Linker_Option_Lines.Table (J).Option := S;
return;
end if;
end loop;
end if;
Store_Linker_Option_String (S);
end Replace_Linker_Option_String;
procedure Sort (Tbl : in out Unit_Ref_Table) is separate;
procedure Store_Compilation_Switch (Switch : String) is
begin
Compilation_Switches.Increment_Last;
Compilation_Switches.Table (Compilation_Switches.Last) :=
new String'(Switch);
end Store_Compilation_Switch;
procedure Store_Linker_Option_String (S : String_Id) is
begin
Linker_Option_Lines.Increment_Last;
Linker_Option_Lines.Table (Linker_Option_Lines.Last) :=
(Option => S, Unit => Current_Sem_Unit);
end Store_Linker_Option_String;
procedure Tree_Read is
N : Nat;
S : String_Ptr;
begin
Units.Tree_Read;
Tree_Read_Int (N);
Compilation_Switches.Set_Last (N);
for J in 1 .. N loop
Tree_Read_Str (S);
Compilation_Switches.Table (J) := S;
end loop;
end Tree_Read;
procedure Tree_Write is
begin
Units.Tree_Write;
Tree_Write_Int (Compilation_Switches.Last);
for J in 1 .. Compilation_Switches.Last loop
Tree_Write_Str (Compilation_Switches.Table (J));
end loop;
end Tree_Write;
function Version_Get (U : Unit_Number_Type) return Word_Hex_String is
begin
return Get_Hex_String (Units.Table (U).Version);
end Version_Get;
procedure Version_Referenced (S : String_Id) is
begin
Version_Ref.Append (S);
end Version_Referenced;
end Lib;